/*
 * Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.nacos.core.distributed.distro.component;

import com.alibaba.nacos.core.distributed.distro.entity.DistroData;
import com.alibaba.nacos.core.distributed.distro.entity.DistroKey;

import java.util.List;

/**
 * Distro数据存储器.
 *
 * @author xiweng.yy
 */
public interface DistroDataStorage {
    
    /**
     * 设置当前存储器已经初始化完毕.
     */
    void finishInitial();
    
    /**
     * 判断当前存储器是否已经初始化完毕.
     *
     * @return 已完成初始化返回true，否则返回false
     */
    boolean isFinishInitial();
    
    /**
     * 获取数据.
     *
     * @param distroKey 数据的key
     * @return 数据
     */
    DistroData getDistroData(DistroKey distroKey);
    
    /**
     * 获取所有数据快照.
     *
     * @return all datum
     */
    DistroData getDatumSnapshot();
    
    /**
     * 获取验证数据.
     *
     * @return verify datum
     */
    List<DistroData> getVerifyData();
}
